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Step 3: Save the above code with .html and open this file in any web browser.
The web browser displays the alert message ‘Hello World !’.
CREATING A WEB PAGE WITH EXTERNAL JAVASCRIPT
To use external JavaScript, follow the given steps:
Step 1: Open the Notepad and type the following line:
alert("Hello World");
Step 2: Save the file with .js extension.
Step 3: Open another Notepad and type the following code:
<HTML>
<HEAD>
<TITLE> My First JavaScript </TITLE>
<SCRIPT TYPE="text/javascript" SRC="external.js">
</SCRIPT>
</HEAD>
<BODY>
This message box is displayed using external JavaScript.
</BODY>
</HTML>
Step 4: Save the file with .html extension and open the web page in web browser. You will get
the same output as the previous web page.
Introduction to JavaScript 69

